9 Chrome Tanning
工業(yè)科技

9 Chrome Tanning圖片（共2張） :

        In chrome tannage,pickled pelt is treated with basic chrome sulphate. Each chrome complex molecule reacts with several carboxyl groups of collagen to produce crosslinking between different molecule chains of the collagen. This will strengthen the fiber ne......（本文共 9989 字, 2 張圖）     [閱讀本文] >>